Instruction Set
Timer
3-5
Timer Instructions
Instruction
Description
Timer On Delay
TON
Status Bits:
EN – Enable
TT – Timer Timing
DN – Done
If the input conditions go true, timer T4:1 starts incrementing in 1-second intervals. When
the accumulated value is greater than or equal to the preset value (15), the timer stops
and sets the timer done bit.
Timer Off Delay
TOF
Status Bits:
EN – Enable
TT – Timer Timing
DN – Done
If the input conditions are false, timer T4:1 starts incrementing in 10 ms intervals as long as the
rung remains false. When the accumulated value is greater than or equal to the preset value
(180), the timer stops and resets the timer done bit.
TIMER ON DELAY
Timer
T4:1
Time Base
1.0
Preset
15
Accum
0
TON
Rung
Condition
EN
15
TT
14
DN
13
ACC
Value
TON
Status
False
0
0
0
0
Reset
True
1
1
0
increase
Timing
True
1
0
1
>=preset
Done
TIMER OFF DELAY
Timer
T4:1
Time Base
.01
Preset 180
Accum
0
TOF
Rung
Condition
EN
15
TT
14
DN
13
ACC
Value
TOF
Status
True
1
0
1
0
Reset
False
0
1
1
increase
Timing
False
0
0
0
>=preset
Done